In: Statistics and Probability
Mendel crossed pea plants that had yellow-round seeds with plants that had green-wrinkled seeds. The first generation produced plants with all yellow-round seeds. Self crossing of these plants produced the following F2 phenotypes:
Yellow-Round | Yellow-wrinkled | Green-round | Green-wrinkled | |
Count | 315 | 101 | 108 | 32 |
The expected phenotypic ratio is 9:3:3:1
1. What are the null and alternate hypotheses for the chi-square goodness of fit test?
2. What are the expected counts under the null hypothesis?
3. Determine a chi-square test statistic and P value
4. Do you accept or reject the null?